.ll4 CHARACTERS OF TRIBES AND GENERA. 
** Fronds scaly. 
P. lepidota (Pr.); P. lanceolata (Linn.) (v v); P. par- - 
cussa (Cav.) (v v.) ; P. squamata (Linn.) (v v.) ; P. elongata, 
J. Sm. (Grammitis, Sw.) (v v.); P.angusta (H. and B.); 
P. leucosporum (Klot.); P. tridens (Kze.) 
Oss.—In P elongata the receptacle is transversely 
elongated, forming oblong linear sori, which character led 
Swartz to refer this species to Grammitis. On this same 
character Klotzsch separates it as a genus, under the name 
of Mecosorus; but as other species of the genus have a 
tendency to produce oblong sori, I do not deem it worthy 
of adoption, 
29, Paracramma, Blume (1898). 
Polypodium sp. auct.; Hook. Sp. Fil. 
` Surculum short cwspitose or slender elongated. Fronds 
simple, linear lanceolate, obtuse, j to 1} foot in length, S 
ł to lj inch broad, smooth, coriaceous. Veins compound ` 
anastomosing, internal, obscure, nearly uniform. Recepta- 
cles compital, deeply immersed, forming oblong or short 
linear cysts near to, and parallel with, the margin. Sori 
oblong linear, marginal, furnished with indusioid stipitate ` 
squaine. 
Type. Grammitis longifolia, Blume. e 
. lllust. Hook. Fil. Exot., t. 20; Moore Ind. Fil., p. 19, B; : 
J. Sm. Ferns, Brit. and For., fig. 13. a 
= OBs.—The oblong linear sori led Blume to place the 
.. typical species of this genus under Grammitis, for which he 3 
. constitutes the section Paragramma; from Grammitis ib ` 
~ differs in having articulate vernation, and having s anasto- 
| mosing veins and marginal sori, da 
